Home / 5,617.65-8,425.20-1,668.09

Finding the Fourth Proportional to 5,617.65, 8,425.20 and 1,668.09

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Solution

The fourth proportional to 5,617.65, 8,425.20 and 1,668.09 is: 2,501.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,617.65 : 8,425.20 = 1,668.09 : x
  2. Step 2: Convert to fraction form
    5,617.65/8,425.20 = 1,668.09/x
  3. Step 3: Cross multiply
    5,617.65x = 8,425.20 × 1,668.09
  4. Step 4: Simplify right side
    5,617.65x = 14,053,991.87
  5. Step 5: Solve for x
    x = 14,053,991.87/5,617.65
  6. Step 6: Final answer
    x = 2,501.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.